6816146 has 4 divisors (see below), whose sum is σ = 10224222. Its totient is φ = 3408072.

The previous prime is 6816137. The next prime is 6816149. The reversal of 6816146 is 6416186.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4669921 + 2146225 = 2161^2 + 1465^2 .

It is not an unprimeable number, because it can be changed into a prime (6816149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1704035 + ... + 1704038.

Almost surely, 2^6816146 is an apocalyptic number.

6816146 is a deficient number, since it is larger than the sum of its proper divisors (3408076).

6816146 is a wasteful number, since it uses less digits than its factorization.

6816146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3408075.

The product of its digits is 6912, while the sum is 32.

The square root of 6816146 is about 2610.7749807289. The cubic root of 6816146 is about 189.6034759046.

The spelling of 6816146 in words is "six million, eight hundred sixteen thousand, one hundred forty-six".